Bangladesh is situated in a tropical low-lying coastal area. A vast network of rivers, an enormous discharge of river-borne sediments, a large number of estuarine islands, and strong tidal action characterize the coastal environment of Bangladesh. According to the salinity experiment result, crop production did not hamper by salinity change in this region. From the analysis of past and present climate data of the study area, Temperature has increased than before and rainfall has increased in June-July and decreased in October-November